View file themes/plus/html/admin/content.html
<div class="row-page{$content_class}">
<div class="grid-container">
<div class="grid-content">
<div class="page-container">
<div class="page-content">
<div class="page-header">{$welcome}</div>
{$error}
{$success}
{$settings}
</div>
</div>
</div>
<div class="grid-sidebar">
<div class="sidebar-container widget-admin-settings">
<div class="sidebar-content">
<div class="sidebar-header">{$lng->admin_ttl_sidebar}</div>
{$menu}
</div>
</div>
</div>
</div>
</div>